Grease-cup.



F. L.-TREESE. GREASE 0UP. APPLICATION TILE-D APR.21, 1911.

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WITNESSES 3 l/WEIVTOR f fimxg lii'ffisg .kfl W P 5 5a: I 3

ATTORNEYS 1b all whom it may concern:

FJMLNK LEONARD TREE$E, OF JUNIATA, EENNSYEVANI-Is.

GREASE-CUP.

Specification of Letters Patent. v Patented Sept. 12, 1911' Application filed April 21, 1911; Serial No. 622,441.

Be'it known that I, FRANK L. Tnnnsn, acitizen of the United States, and a resident of J uniata, in the county of Blair and State of Pennsylvania, have made certain new and useful Improvements in Grease-Cups, of which the following is a specification.

My invention relates to improvements in lubricating devlces, and it consists in the combinations, constructions and arrangements herein described and claimed.

An object of my invention is to provide a cup for holding hard grease of a serni-fiuid nature with means for forcing the grease throu h a feed opening.

A urther object of my invention is to i provide a device which may be readily filled and in which the cover forms a guide mem her for the stem of a movable plunger or piston.

A further object of my invention is to provide a grease cup having a maximum capacity",'owing to the fact that part of the mechanism for exerting a pressure on the grease is disposed on the exterior of the cup rather than on the interior.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings in which- Figure 1 is a perspective view of the device in its operative position, and Fig. 2 is a vertical section through the device.

In carrying out my invention I provide a cylindrical cup 1 of brass or other suitable material, having an integral bottom 2 preferably of a hexagonal shape for the purpose of accommodating a wrench or other tool. The bottom :2 has an integral extension 3 which is threaded at 4 and which may be screwed into an opening in a bearing (not shown). A small feed passage 5 'is provided which communicates with the interior of the cup 1. The top of the cup is threaded as shown at (3, to receive a threaded ring 7 which is 'provided with an extension 8 on one side thereof. Surmount-ing the cup 1 is a cover 9 having a central opening 10; The cover has an arm 9 which is pivoted to the extension 8 at 9 A spiral spring 11 surrounds the outer portion of the cup 1, the upper end of the spring bearing against the ring 7 and the lower portion bearing against a collar 12 which is provided with upturned flanges 13.

A bail 14: is pivotally-' mounted on the flanges 13.

XVithin the cup 1 isa plunger 15 whose.

stem 16 is adapted to pass through the opening pin. The upper partofthe stem l6 is provided with a notch 17 adapted to receive the bail. A stop-pin 18 is carried, by the stem a short distance below the top. About midway 'between the plunger 15 and the upper end of the stem is a notch 19.:1-lsoadapted to receive the bail.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood.

In filling the device the bail is pulled upwardly and swung free from the stem. The plunger is then raised until it is within the cover, when the latter may be swung free of the cup into the position indicated by dotted lines in Fig. 2. The cup is then filled with the grease and the cover is again swung into position. The bail is lifted against the tension of the spring and may be 'hooked in the notch 19. The tension of the spring forces the plunger downward-1y so that the grease is forced out of the opening into contact with the moving part which it is designed to lubricate. Where the cup is used with an automobile it may be left until the bail has nearly reached the cover, when it may be lifted and slipped into the notch 17, as shown in Figs. 1 and 2.

Obviously the spring might be arranged so that the bail could be lifted immediately over the end of the stem 16, thereby dispensing with the use of the notch 19, but' in practice I prefer to provide the'notch there by obviating the necessity of a very stifi: spring.

I claim 1. A grease cup having a feed opening in its bottom, and provided with a threaded upper end, athreaded ring arranged to engage the threads of the upper end of the cup, and provided with an extension, a cover having a central opening'and being provided with an armhaving a pivotal connection with the extension of the ring, a plunger disposed within said cup and provided with a stein arranged to extend through the central-opening in the cover, a collar slidably disposed on the exterior of saidcup, a spiral spring disposed between said collar and said ring, and a bail pivotally mountedon said slidable collar and adapted to engage the stem.

2. A grease cup having a feed opening in :its bottom, a cover hinged to said cup, and provided withan opening, a lunger having a stem arranged to extend through said 5 opening, a-collar slidably' disposedon the exterior of saidcup, a spiral spring sur- "rounding said cup, and hearing at one end upon said collar, and a bail pivotally mounted on said collar and adapted to engage the stem.- a.

' 3. A grease cup having a feed 0 ening in .its bottom, a cover hinged to sai cup andprovided with an opening a longer having nged to extend throu h said v. 's e ope ga guide membe'rslidably is osed on the exterior of said cup, a sprin ar- "ing atone end upon said guide mem er, the Y other end of the sprin bearing against a portion of the on and means for detachably securing sai guide member to said stem.

4. A grease cup having a feed 0 ening at its bottom,'a cover hinged to sai cup and provided with an opening, acplunger havin a stem arran ed to extend through sai opening, a col ar slidab1ydisposed on the exterior of said cup, a spring forholding said collar normally awa from said cover 

